[fuchsia] Migrate to new RealmBuilder API (#39196)

See https://fxrev.dev/793422.

Missed in d85ec02 and
ade610e.

Author: tamird

shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/dart-aot-runner-integration-test.cc

@@ -99,9 +99,9 @@ TEST_F(RealmBuilderTest, DartRunnerStartsUp) {
 
   // Build the Realm with the provided child and protocols
   auto realm = realm_builder.Build(dispatcher());
-  FML_LOG(INFO) << "Realm built: " << realm.GetChildName();
+  FML_LOG(INFO) << "Realm built: " << realm.component().GetChildName();
   // Connect to the Dart echo server
-  auto echo = realm.ConnectSync<flutter::example::echo::Echo>();
+  auto echo = realm.component().ConnectSync<flutter::example::echo::Echo>();
   fidl::StringPtr response;
   // Attempt to ping the Dart echo server for a response
   echo->EchoString("hello", &response);

shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/dart-jit-runner-integration-test.cc

@@ -97,9 +97,9 @@ TEST_F(RealmBuilderTest, DartRunnerStartsUp) {
 
   // Build the Realm with the provided child and protocols
   auto realm = realm_builder.Build(dispatcher());
-  FML_LOG(INFO) << "Realm built: " << realm.GetChildName();
+  FML_LOG(INFO) << "Realm built: " << realm.component().GetChildName();
   // Connect to the Dart echo server
-  auto echo = realm.ConnectSync<flutter::example::echo::Echo>();
+  auto echo = realm.component().ConnectSync<flutter::example::echo::Echo>();
   fidl::StringPtr response;
   // Attempt to ping the Dart echo server for a response
   echo->EchoString("hello", &response);

shell/platform/fuchsia/flutter/tests/integration/mouse-input/mouse-input-test.cc

@@ -171,7 +171,7 @@ class MouseInputTest : public PortableUITest,
 
     // Get the display dimensions.
     FML_LOG(INFO) << "Waiting for scenic display info";
-    scenic_ = realm_root()->Connect<fuchsia::ui::scenic::Scenic>();
+    scenic_ = realm_root()->component().Connect<fuchsia::ui::scenic::Scenic>();
     scenic_->GetDisplayInfo([this](fuchsia::ui::gfx::DisplayInfo display_info) {
       display_width_ = display_info.width_in_px;
       display_height_ = display_info.height_in_px;

shell/platform/fuchsia/flutter/tests/integration/text-input/text-input-test.cc

@@ -145,7 +145,7 @@ class TextInputTest : public PortableUITest,
 
     // Get the display dimensions.
     FML_LOG(INFO) << "Waiting for scenic display info";
-    scenic_ = realm_root()->template Connect<fuchsia::ui::scenic::Scenic>();
+    scenic_ = realm_root()->component().Connect<fuchsia::ui::scenic::Scenic>();
     scenic_->GetDisplayInfo([this](fuchsia::ui::gfx::DisplayInfo display_info) {
       display_width_ = display_info.width_in_px;
       display_height_ = display_info.height_in_px;